Quote Originally Posted by Tim Gray View Post
I think they do actually have highly enriched uranium at the MIT reactor. As in weapons grade. The little info I could find on it stated 93% enriched, which is pretty darn high.
Research reactors are typically using fuel in the 20-30 percent range. There's no practical reason to use 90+ percent in a reactor--it would be too hard to control. Also, MIT is in the process of converting to LEU.